The consensus price target for Ciena Corporation (NYSE:CIEN) has increased significantly over the past year, indicating a positive sentiment among analysts.Recent upgrades, including a Zacks Rank #2 (Buy), reflect growing optimism about Ciena's earnings prospects and potential stock price appreciation.The substantial rise in the average price target from $143.64 a year ago to$218.33 last month highlights a strong positive shift in analyst expectations for Ciena.Ciena Corporation (NYSE:CIEN) is a global lea ...